Cochise sits next to 2 phonetic neighbors — Kokeesh and Cochise are the closest matches by sound. Most share Cochise's Native American cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hardwood"
"cymbal player, dulcimer musician"
"ruler of the people"
"battle warrior, powerful ruler"
"hard and precious"
"Ford, river crossing"
"younger son, junior member"
"Champion knight; defender of the palace and faith"
"White or fair-haired; from the Flemish name de Witte"
"red-haired, ruddy"
"dweller in the town"
"invented by Jonathan Swift from Esther Vanhomrigh (Van + Essa); no ..."
Similar sound: These names share phonetic patterns with Cochise — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Chiricahua Apache origins, giving them the same cultural heritage as Cochise.
Rhythm: Cochise is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.